Fly screen



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F. S. RUSSELL.

FLY SCREEN. APPLlcATloN FILED MAY 2o,`921.

Patented Nov. 2l, 1922.

1 f m rvr lid JULI". J'Lu" JHL -JLIK l Patented Nov., 2l, i922.

FRANK S. RUSSELL, OF CHCAGO, ILLINOIS.

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Application filed May 20, 1921. Serial No. lllll.

'T0 allee hom 'it may concern z.Be lit known that. l, FRANK S. RUSSELL,a

, Citizen ofthe llnited States, residing at Chicago, in the' county of.Cook and IState of lllinoishave invented certain new and use- V*ful*Improvements ,in Fly .'Screens, of which the following is a description.

My invention relates to improvements in fiyscrzeens, said screens. being`so I.designed that the fly may have, an easy exit therefrom from theinner side of the screen to the outside, l.said exit being so formed anddirected that the fly willv not enter through the screen 'from theoutside.

It is well known that if a pair of parallel sheets are verticallyarranged so Ato overlap and spaced from each other to provide upwardlyand outwardly directed openings therebetween, a fly on the iunerside ofthe screen will travel upwardly thereon and outwardly between the spacedsheets, but a ily on the outside will not descend through said spacedsheets, as the tendency of the ly is to travel upwardly throughopenings, and not downwardly therethrough.

The invention has among its further objects the production of a deviceof the kind described that is simple, convenient, durable, economical,reliable, eflicient and satisfactory for use wherever found applicable.

Many other objects and advantages of the construction herein shown anddescribed will be obvious to those skilled in the art from thedisclosure herein given.

To this end my invention consists in the novel construction, arrangementand combination of parts herein shown and described, and moreparticularly pointed out in the claims.

ln the drawings, wherein like reference characters indicate like orcorresponding parts;

Figure l is a front elevation of my screen in position on a suitableframe;

Figure 2 is a side elevation of the same; and

Figure 3 is` a top plan view thereof.

In the drawings wherein I have illustra-ted a preferred embodiment of myinvention, l designates a suitable frame member of a screen adapted tocover a window opening, door, or the like, said screen comprising aplurality of substantially vertically arranged, parallel, overlappedsheets 3 of any suitable material, preferably foraininous orreticulated, the upper ends of the sheets being designated as l andtheir lower ,ends as 5.

At one or both ends of each of the sheets 3 are provided a seriesothorizontally spaced ribs, lugs, or projections 6 6', these ribs orprojections being integral with said sheets. Said projections may beformed by pressing or punchingthe sheets at these points to strike upsaid projections thereon. As shown, these ribs are vertical on thesheets,

`but this is not essential, as said ribs may be horizontal therebyfacilitating the rolling up or ceiling ofthe sheets in the process oftheir manufacture. TWhen both the upper and lower edges of each of thesheets are struck up, the projections l(3f-6 are oppositely directed asshown.

rlhe sheets are assembled in place on the frame by tacking the lowerends 5 to the frame, or by otherwise suitably securing them thereto soas to be vertically arranged thereon, said sheets having their upper andlower edges overlapping, as shown in Figure 2. llhus the screen iscomposed of a series of vertically arranged, overlapping sheets spacedapart at the upper edges thereof so that the fly or other insect on theinner side of the frame 7 will crawl up the screen and out through theupwardly and outwardly spaced opening S. A fly will not enter the screenfrom the outside because it is adverse to crawling downwardly throughthe openings.

lt has been found that if such a screen is applied over a window openingor door and the room darkened, the flies in said room, being attractedtoward the brightly lighted outside, will crawl through said openings tothe outside and rid the room of flies.

Having thus described my invention it is obvious that various immaterialmodifications may be made in the same without departing from the spiritof my invention; hence l do not wish to be understood as limiting myselfto the .exact form, arrangement, construction and combination of partsherein shown and described or uses mentioned.

1What l claim as new and desire to secure by Letters Patent is:

l. ln a device of the kind described and in combination, a series ofsubstantially vertically arranged overlapping sheets, and projecting`means integral with the lower edge of each of said sheets and adapted tobear against the exterior overlapping sheet and space it therefrom,forming upwardly and outwardly extending openings therebetween.

2. In a device of the kind described and in combination, a series ofsubstantially vertically arranged overlapping sheets, and a series ofhorizontally spaced projecting means integral with the lower edge ofeach of said Asheets and adapted to bear against the exterioroverlapping sheet and space it therefrom, forming upwardly and outwardlyextending openings therebetween.

3. In a device of the kind described and in combination, a series ofscreens comprising substantially vertically arranged sheets having theupper edges ot said sheets exteriorly overlapping the lower edges of theadjacent sheets, and integral projections formed on saidlower edges andadapted to bear against the upper part of said adj acent sheets to spacesaid sheets apart thereat and provideV upwardly and outwardly eX-tending recesses therebetween.

4. In a fly screen, a frame, and a series of sheets thereon, said sheetshaving their upper and lower edges overlapping, the lower edges of saidsheets having outwardly ex- .on and adapted to bear on the adjacentinterior overlapped sheets whereby upwardly and outwardly extendingrecesses are formed between adjacent sheets.

. y In testimony whereof, I have hereuntov signed my name in thepresence of two subscribing witnesses.

FRANK S. RUSSELL, l/Vitnesses IoHN W. HILL, BERTHA HARTMANN.

